In Scientific American, new member Sharmila Kuthunur writes about the frothing, sloshing surface of the red giant star Betelgeuse — the right shoulder of Orion — and new research modeling its unusual, colossal bubbles. She explains how the eruption and subsiding of bubbles on the surface could be the reason the star appears to rotate perplexingly fast, much more quickly than other stars of its type. She deftly outlines the skepticism and questions from other experts on the new theory and explains what new data could provide some clarity. Image: Public domain (Giuseppe Donatiello)
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